System and Method for Fluid Temperature Stability for Multi-Section Beverage Making Machine

ABSTRACT

A beverage making machine where the main machine is located under the counter out of the view of the customers. This new design allows for the machine to be built in sections instead of inserting all components into one device and allows for easy servicing. Using electrically heated hoses allows for the main user interface to be located any distance away from the brewing machine, which frees up counter space and allows for easier servicing. The electrically heated hoses are a key component to this machine because the hose is electrically heated to maintain a desired temperature level so that heated fluids do not lose heat upon transfer from boiler to dispenser, making this machine a temperature stable coffee/espresso machine.

FIELD OF THE DISCLOSURE

This disclosure relates generally to beverage making machines.

BACKGROUND

Present day espresso machines are built with the boiler system and the dispensing system placed in close proximity of one another, usually integrated into a singular housing, in order to minimize water or steam temperature fluctuations during extraction as the water or steam travels from the boiler system to the dispensing system through a throughway such as a hose or a pipe.

Because of this singular housing design, present day espresso machines tend to be bulky, especially in commercial units that require large amounts of water and thus, larger boilers to accommodate the higher output of product. Larger boilers lead to larger machines which means less room on the counter for the user to work on. Additionally, larger espresso machines unfortunately often block views, preventing interaction between employees and customers, and that employee-customer interaction, along with good coffee, is important for achieving that iconic coffee shop atmosphere that draws and retains loyal customers.

Separating the boiler system from dispensing system would solve the problem of having a large machine, but because fluids lose energy as they travel along pipes or hoses, storing the boiler system away from the dispensing system would require water or steam to travel along greater distances and lose heat, which would result in coffee brewed at suboptimal temperatures, further resulting in a low quality product.

For the foregoing reasons, there is a need for a system or method for fluid temperature stability for a multi-section beverage making machine.

More Reference to, and discussion of, the foregoing background is not presented as prior art and is respectfully submitted that none of the above-indicated patents and patent applications disclose, teach, suggest, show, or otherwise render obvious, either singly or when considered in combination, the invention described and claimed herein.

SUMMARY

The present invention allows for the beverage making machine to be built in sections instead of inserting all components into one device or within a confined area. Having a machine built in sections and setting up different sections in different areas frees up counter space and allows for easier servicing of the machine. With the use of an electrically heated hose, the boiler system can be located any distance away from the dispensing system to achieve the present invention. The electrically heated hose is a heating element that allows the user to maintain temperatures of water or steam within the electrically heated hose so that no temperature is lost during extraction as the water or steam travels from the boiler system to the dispensing system. This solves the problem of temperature fluctuation in espresso machines with their boiler systems separated from their dispenser systems.

Certain terminology and derivations thereof may be used in the following description for convenience in reference only, and will not be limiting. For example, words such as “upward,” “downward,” “left,” and “right” would refer to directions in the drawings to which reference is made unless otherwise stated. Similarly, words such as “inward” and “outward” would refer to directions toward and away from, respectively, the geometric center of a device or area and designated parts thereof. References in the singular tense include the plural, and vice versa, unless otherwise noted.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present disclosure are described in detail below with reference to the following drawings. These and other features, aspects, and advantages of the present disclosure will become better understood with regard to the following description, appended claims, and accompanying drawings. The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations and are not intended to limit the scope of the present disclosure. Also, the drawings included herein are considered by the applicant to be informal.

FIG. 1 Pictorial Schematic showing the main components and connections of the system.

FIG. 2—Isometric View of the dispensing system, where hot water and steam are used to create drinks.

FIG. 3—Isometric View of the boiler system, where boilers and electrical systems are stored.

FIG. 4 is an Isometric Schematic showing the connection between the boiler system and the dispensing system.

FIG. 5 is an Isometric Schematic showing the steam transfer portion of the dispensing system.

FIG. 6 is an Isometric View of different temperature control components within parts of the dispensing system.

FIG. 7 is a flow chart illustrating a first preferred method for brewing temperature controlled beverage.

FIG. 8 is a flow chart illustrating a second preferred method for brewing temperature controlled beverage.

DETAILED DESCRIPTION

In the Summary above and in this Detailed Description, and the claims below, and in the accompanying drawings, reference is made to particular features (including method steps) of the invention. It is to be understood that the disclosure of the invention in this specification includes all possible combinations of such particular features. For example, where a particular feature is disclosed in the context of a particular aspect or embodiment of the invention, or a particular claim, that feature can also be used, to the extent possible, in combination with and/or in the context of other particular aspects and embodiments of the invention, and in the invention generally.

The term “comprises” and grammatical equivalents thereof are used herein to mean that other components, ingredients, steps, among others, are optionally present. For example, an article “comprising” (or “which comprises”) components A, B and C can consist of (i.e., contain only) components A. B and C, or can contain not only components A, B, and C but also contain one or more other components.

Where reference is made herein to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously (except where the context excludes that possibility), and the method can include one or more other steps which are carried out before any of the defined steps, between two of the defined steps, or after all the defined steps (except where the context excludes that possibility).

The term “at least” followed by a number is used herein to denote the start of a range beginning with that number (which may be a range having an upper limit or no upper limit, depending on the variable being defined). For example, “at least 1” means 1 or more than 1. The term “at most” followed by a number (which may be a range having 1 or 0 as its lower limit, or a range having no lower limit, depending upon the variable being defined). For example, “at most 4” means 4 or less than 4, and “at most 40%” means 40% or less than 40%. When, in this specification, a range is given as “(a first number) to (a second number)” or “(a first number)-(a second number),” this means a range whose limit is the second number. For example, 25 to 100 mm means a range whose lower limit is 25 mm and upper limit is 100 mm.

FIG. 1 shows all the main components of the present invention. 2 is the dispensing system where coffee preparation occurs. 3 is the boiler system where all the main boilers and controllers are located, where water first flows into, and power is inputted. From the boiler system, all power, water, and steam is outputted to the desired destination, which is normally the dispensing system. 4 is the electrically heated hose or tubing that is used to keep the fluid temperature stable while fluid is transferring from the boiler system to the dispensing system. 5 is the steam solenoid valve, water solenoid valve, and condensate valve manifold that receives the incoming steam or hot water from the boiler system and stores and transfers the steam or hot water to the dispenser unit when needed.

FIG. 2 shows the dispensing system where all coffee preparation occurs. 6 is the housing frame that holds all the components. 8 is the drain where all water and coffee and waste is drained to a floor or water disposal system. 10 is the group head or the device that the portafilter (a cup like device where ground coffee is added and compacted to make espresso) is connected and where the outgoing water is delivered to in order to brew coffee. To avoid heat loss during the fluid extraction process, group head has a 12 cartridge heater inserted into the surface of the head. The cartridge heater is a heating element powered by an electronic temperature control unit such as a proportional-integral-derivative (“PID”) controller or control loop. The dispensing system uses steam or hot water to create different beverages. 14 is the steam output means such as spouts, spigots, and wands and 18 is the hot water output means including spouts, spigots, and wands. After steaming of extracting espresso there is always milk and coffee residue to clean. To avoid a trip to the sink or dirty dish pile, the dispensing system has a 16 pitcher rinser built into the 8 drain. The pitcher rinser is a device that uses incoming cold or hot water and has a small actuator that opens when you press down on the rinser, supplying water to clean. 20, 22, 24, and 26 are all buttons for activating different valves and pumps to create coffee based drinks. 20 is the steam valve actuation button, 22 activates the pump for extracting espresso, 24 turns on the brew valve letting water flow from your group head, and 26 activates the hot water valve.

FIG. 3 shows the boiler system. This is where all incoming power and water is imputed into the machine. The water is heated and power is distributed to all other components of the machine. The 28 frame holds the boilers used for creating steam and hot water for creating beverages. The incoming water enters the steam boiler 46. The steam boiler has heat exchangers built into the boiler at 32 and 36. The heat exchangers run through the center of the steam boiler vertically. The water used to create steam and the steam vapor both heat the inner heat exchanger metal which heat the water passing through it. The heated water then moves from the heat exchanger to the 44 brew boiler. The 30 PID controller controls and regulates the temperature of the brew boiler. The brew boiler takes the incoming heated water and adds a small amount of cold restricted water through a water restrictor input 42 to keep the water close to the extraction temperature set point. The PID controlled brew boiler heats and keeps the water temperature at the extraction temperature set point needed to create coffee set by the user. An electrically heated hose or tubing is removably coupled to the brew boiler at a 40 nozzle or opening, and the water is transferred from the brew boiler to the dispensing system through the electrically heated hose or tubing. The 46 steam boiler or steam generator heats water and creates steam pressure. The steam output through a 38 nozzle or opening and the hot water output is at a separate 34 nozzle or opening.

FIG. 4 shows the boiler system connected to the dispensing system via 48 electrically heated hoses or tubes. Once the boiler system has heated water or steam to optimal temperatures, the fluid needs to be transferred from the boiler system to the dispensing system. To prevent temperature or energy loss in the fluid as the fluid travels from boiler system to dispensing system, the electrically heated hoses or tubes are heated to a desired temperature level by the PID controller. The PID controller maintains the temperature of the hoses or tubes as the water passes through, which prevents temperature fluctuations of the water.

FIG. 5 is a sectional view of a group head of the dispensing system that shows the different heating elements and heating valves. This uses the incoming steam pressure and water from the steam boiler and has multiple solenoid valves that store steam and hot water within the dispensing system until needed to be used. The 46 electrically heated hose or tube is removably coupled to the 58 steam solenoid valve and a 68 condensate valve. A condensate valve is a solenoid valve with a timer, and opens and closes periodically to remove all water that has pooled in the 62 steam tubes. The steam solenoid valve opens and closes to allow steam to travel to the 14 steam output means located on the dispensing system. As steam sits in the steam tube it loses energy or heat and the steam turns back to water, and this water begins to pool in the steam tubes. The pooled water is transferred to a drain via 72 a separate drain tube. This allows the steam to be dry but still saturated. To further the drying effect of the steam 48 an electrically heated hose or tubing is added to the output of the steam tubing. Setting the electrically heated hose or tubing to above the temperature of the steam creates super-heated steam which further vaporizes the water in the saturated steam traveling through the electrically heated hose or tubing. The temperature of the electrically heated hose or tubing is adjustable and can create different levels of superheated and saturated steam mixtures desired, such as for steaming milk. 60 is the incoming hot water tube coming from the steam boiler, the water is fed to 64 the hot water solenoid valve, and from 68 the water is transferred to 18 the hot water output means via 72 the hot water output pipe.

FIG. 6 is an Isometric View of components located inside a chambered group head housing of the dispensing system that shows the different heating elements and heating valves. It is built to hold a solenoid valve system 76 and cartridge heater 75 along with the group head 73 to keep a stable temperature for the final stage of extraction of fluids. The group head housing holds the group head which holds portafilter. The solenoid valve system and the cartridge heater work together to prevent temperature loss inside the chambered group head housing in the final stage of extraction of fluids. The solenoid valve system is connected to an electrically heated hose. The electrically heated hose also has a heated tip powered by an electrical connection and wires connected to the PID controller, and this heated tip eliminates any heat loss at the valve system to hose junction. This is important because surface area temperature within the group head has to be consistent with the temperature set by the user through the PID controller to achieve temperature control. The group head has a heating element built in and works with the solenoid valve to keep the system within the chambered group head housing at any desired temperature.

FIG. 7 shows the flow of water through the system once the user has chosen a desired temperature to use water to create a beverage.

FIG. 8 shows the flow of steam through the system once the user has chosen a desired temperature to use steam to create a beverage.

While preferred and alternate embodiments have been illustrated and described, as noted above, many changes can be made without departing from the spirit and scope of the SYSTEM AND METHOD FOR FLUID TEMPERATURE STABILITY FOR MULTI-SECTION BEVERAGE MAKING MACHINE. Accordingly, the scope of the SYSTEM AND METHOD FOR FLUID TEMPERATURE STABILITY FOR MULTI-SECTION BEVERAGE MAKING MACHINE not limited by the disclosure of these preferred and alternate embodiments. Instead, the scope of the invention title be determined entirely by reference to the claims. Insofar as the description above and the accompanying drawings (if any) disclose any additional subject matter that is not within the scope of the claims below, the inventions are not dedicated to the public and Applicant hereby reserves the right to file one or more applications to claim such additional inventions.

The reader's attention is directed to all papers and documents which are filed concurrently with this specification and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

All the features disclosed in this specification (including any accompanying claims, abstract, and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example of a generic series of equivalent or similar features.

Any element in a claim that does not explicitly state “means for” performing a specified function, or “step for” performing a specific function is not to be interpreted as a “means” or “step” clause as specified in 35. U.S.C. §112 ¶6. In particular, the use of “step of” in the claims herein is not intended to invoke the provisions of U.S.C. §112 ¶6. 

We claim:
 1. A beverage making machine comprising: a metal housing; an electronic temperature control unit comprising electrical wires or cables and one or more temperature value input means; one or more electrically heated hose further comprising an electrical connection removably coupled to electrical wires or cables, wherein said electrical wires or cables are coupled to said electronic temperature control unit; one or more steam boilers, wherein said steam boiler further comprises a plurality of electrical connectors removably coupled to electrical wires or cables removably coupled to said electronic temperature control unit, a plurality of nozzles coupled to a plurality of pipes or hoses for fluid transfer, a heat exchanger coupled to a cold water intake pipe or hose that changes cold water to hot water, and an output nozzle removably coupled to one end of one of said one or more electrically heated hoses; one or more brew boilers comprising an intake nozzle for fluid intake, output nozzle for fluid output, a plurality of electrical connectors removably coupled to electrical wires or cables removably coupled to said electronic temperature control unit, said intake nozzle coupled to a fluid transfer pipe that is further coupled to said steam boiler at one of said plurality of nozzles, and said output nozzle removably coupled to one electrically heated hose of said one or more electrically heated hoses; a dispensing system comprising a housing frame, a drain, pitcher rinser, a steam output means coupled to one of said one or more electrically heated hoses, a hot water output means coupled to one of said one or more electrically heated hoses, one or more chambered group head housings further comprising a heating element coupled to a hot water or steam solenoid valve to prevent temperature loss of fluids upon transfer, a nozzle removably coupled to one end of one of said one or more electrically heated hoses, the end opposite to the end removably coupled to said nozzle of said dispensing system removably coupled to one of said one or more steam boilers or one of said one or more brew boilers.
 2. The beverage making machine of claim 1 further comprising: a plurality of temperature control interfaces to set different temperature values.
 3. The beverage making machine of claim 1 further comprising: a plurality of buttons to actuate different fluid types.
 4. The beverage making machine of claim 1 further comprising: a dispensing system comprising one or more chambered group head housings further comprising a heating element coupled to a hot water or steam solenoid valve to prevent temperature loss of fluids upon transfer, a nozzle removably coupled to one end of one of said one or more electrically heated hoses, the end opposite to the end removably coupled to said nozzle of said dispensing system removably coupled to one of said one or more steam boilers or one of said one or more brew boilers.
 5. A method for maintaining temperature of the fluid for a beverage making machine comprising: a user inputs a desired temperature setting on an electronic temperature control unit to heat water in a steam boiler to a desired temperature; a user inputs a desired temperature setting on the electronic temperature control unit to heat one or more electrically heated hoses to stabilize the temperature of the water inside one or more electrically heated hoses; the steam boiler heats water to temperature that was input by user; the water is transferred through at least one electrically heated hose; the heated hose electrically heats water within it to temperature input by user; the water is transferred in one or more heated hoses to the dispensing system; a user dispenses the temperature stable hot water to make a beverage at said dispensing system.
 6. A method for maintaining temperature of the fluid for a beverage making machine comprising: a user inputs a desired temperature setting on an electronic temperature control unit to heat water in a steam boiler to a desired temperature; a user inputs a desired temperature setting on the electronic temperature control unit to heat one or more electrically heated hoses to stabilize the temperature of the water inside one or more electrically heated hoses; the steam boiler heats water to temperature that was input by user the steam boiler creates steam by heating water to temperature that was input by user; the steam is transferred through at least one electrically heated hose; the electrically heated hose superheats steam within it to temperature input by user; the superheated steam is transferred in one or more electrically heated hoses to the dispensing system; and a user dispenses the temperature stable superheated steam to make a beverage at said dispensing system. 